By Williams, Louis Otho, 1908- . Genre nc----- / Botany / Central America / Tropical plants / Central America . Names leaves / type / corolla / flowers / mexico and 945 more

By Stuessy, Tod F. . Genre cl----- / Lagascea / Botany / Latin America / Classification . Names lagascea / mexico / leaves / nocca / type and 1552 more

By Burger, William C. . Genre Piperaceae / Casuarinaceae / Botany / Costa Rica . Names apex / leaves / fruit / nodes / lamina and 7036 more

By Williams, Louis Otho, 1908- . Genre n-mx--- / nc----- / Hoffmannia / Botany / Mexico and 2 more . Names corolla / hoffmannia / type / calyx / molina and 250 more

By Burger, William C. / Huft, Michael. . Genre Botany / Costa Rica / Classification / Botany / Classification . Names flowers / mora / leaves / type / apex and 5578 more

By Holmes, Walter C. / MacDaniel, Sidney. . Genre Compositae / Mikania / Botany / Peru . Names ca / peru / leaves / type / mikania and 1877 more

By Nash, Dorothy L. . Genre cl----- / Botany / Latin America . Names flowers / monticola / american / area / arenaria standleyi and 43 more

By Millspaugh, Charles Frederick, 1854-1923 . Genre Botany / Alacran Reef / Euphorbiaceae . Names leaves / euphorbia / island / mus / type and 764 more

By Nash, Dorothy L. . Genre ncgt--- / Botany / Guatemala . Names flowers / leaves / fruit / corolla / mexico and 6656 more

By Gibson, Dorothy N. . Genre ncgt--- / Tournefortia elongata / Tournefortia longiloba / Botany / Guatemala . Names s f / morganella / calyx / ca / corolla and 96 more